Biology, 17.07.2019 11:00 ghari112345
Me fast , you (: scientists find evidence that the genes involved in tooth development exist in chickens, even though chickens do not normally develop teeth. the formation of teeth in chickens can be controlled by introducing a virus into chicken embryos that "turned on" their tooth-developing gene. they find that the beaks of the virus-modified chicken embryos contain cone-shaped teeth similar to embryonic crocodile teeth. which of the following best describes the conclusion that can be drawn from this experiment? a as bird evolution continues, birds like chickens will develop teeth like dinosaurs and reptiles. b the growth of teeth in chickens supports the hypothesis of a common ancestor between birds and reptiles. c the chickens with teeth are more closely related to crocodiles than they are to regular toothless chickens. d with enough genetic engineering, chicken embryos can develop into reptiles like crocodiles.
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Biology, 21.06.2019 20:30
According to the big bang theory, after the "bang," the universe remained dark until about 300,000 yearsone billion yearsthree minutesthree billion years later, when neutral atoms began to form.
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Biology, 22.06.2019 02:00
How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u.s. fish and wildlife service
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Biology, 22.06.2019 03:30
What organelle other than the nucleus houses dna in a eukaryotic cell?
Answers: 1
Me fast , you (: scientists find evidence that the genes involved in tooth development exist in ch...
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